inert gas welding, commonly referred to as TIG welding. Since the electrode rod non-expendable, it

can be added without melting filler metal and base metal fusion only do welding and tungsten electrode

material having good high temperature strength, the welding arc burning process, as the tungsten electrode rod or a tungsten alloy stick substantially no melting and deformation. Under the protection of inert gas, the thermal diffusion of the arc zone is small, it can maintain a more stable arc shape and the arc length, very stable welding process; metal pads while substantially isolated from air, in order to ensure quality welds. TIG welding is suitable for almost all metallic materials, especially non-ferrous metals and their alloys, stainless steel, high temperature alloys, titanium and titanium alloys, and refractory active metals.

Tungsten electrode arc welding (TIG welding) has been widely used, it can weld a variety of metals,

thorium tungsten electrode harm new generation of green products, and its chemical composition and

the amount of tungsten electrodes the same unit cost of raw materials more rare earth compound is added to add the same amount of thorium in raw material costs half, especially the new production process enables improved yield, and the production cost is lower than thorium tungsten generally comparable to conventional rare earth elements such as tungsten, cerium tungsten electrodes. Multiple composite rare earth tungsten electrode welding performance is extremely excellent comprehensive, able to adapt to the needs of different welding current range and welding the base material, the future will become an alternative thorium tungsten, and other brands of green electrode.

Since the tungsten electrode is mainly used in the field of special welding stainless steel, copper,

aluminum, etc., thereby obtaining a greater degree of support in the new round of Chinese manufacturing

transformation and upgrading process, the domestic consumption of tungsten electrodes, although also

fell, but the overall situation is better than in other industries. Also the traditional European market, consumer demand has remained strong tungsten electrodes, tungsten electrode drive market as a whole for the better.